Description Material: ABS Voltage: 110V-240V 50-60Hz Power: 55W Remote control power supply mode: 2 * AAA batteries (not included) Physical resolution: 800 * 480P Compression resolution: 1080P / 720P (supports the resolution of the source) Contrast: 1000: 1 Number of colors supported: 16770K Lamp life:> 30000 hours Projection size: 32-150 inches Best screen size: 60 inches to 80 inches Projector distance: 0.8M-3.8M The best projection distance: 1.2-2M Screen ratio: 4: 3/16: 9 LCD size: 4.0 inches Keystone correction: ± 15 ° (manual) Working temperature: temperature -10 ℃ to + 35 ℃,Humidity 10% ~ 90% RH non-condensing. Input interface: AV input, USB input, TF card read input. HDMI input, VGA input Output interface: speakers or stereo headphones Audio files: Supports MP3, WMA, AAC audio files, etc. Seven sound effects + SRS Image files: support common formats (such as JPEG, BMP, PNG, etc.) Support image zoom; 360 rotation, you can browse images in full screen " Video files: Support formats such as MP4, RMVB, AVI, RM, MKV, etc. Text reading: support TXT format Dolby Sound: Supports AC3 Languages: Supported languages ??Czech; Chinese; English; Danish; German; Spanish; Greek; French; Croatian; Italian; Hungarian; Dutch; Norwegian; Polish; Portuguese; Russian; Romanian; Slovenian; Serbian; Finnish; Japanese; Korean; Slovak. 23 languages ??(Japanese and Korean languages ??require separate flashing software) Product size: 21 * 15 * 7.5cm